高温水解条件下利用离子色谱同时测定煤炭中的卤素（氟、氯、溴、碘）
simultaneous determination of halogens (f, cl, br, and i) in coal using pyrohydrolysis combined with ion chromatography
高温水解条件下利用离子色谱同时测定煤炭中的卤素（氟、氯、溴、碘）
monitoring the halogen levels in coal is important because oftheir effects on human health and the environment. few methodscan be adopted to determine halogens in coal simultaneously. fcan only be determined through ion chromatography (ic) and ionselectiveelectrode (ise), whereas instrumental neutron activationanalysis (inaa) and inductively coupled plasma-mass spectrometry(icp-ms) can only analyze cl, br, and i [1–4]. sample decomposition is a critical step in halogen analysis. halogens are volatile and readily lost when the sample is treated; furthermore, the reagents used for sample digestion may interfere with the determination process itself. to eliminate these drawbacks, pyrohydrolysis and microwave-induced combustion (mic) have been proven effective and reliable digestion methods for determining halogens in coal and oil [2–9]. mic combined with ic, a routine and classic analytical method for determining halogens in water [10], has been successfully used to determine halogens simultaneously in coal [4]. however, about 15% of chinese coal has less than 2.5 lg g_1 br and 75% have less than 3.0 lg g_1 i. therefore, the limits of detections (lods) for br and i (2.5 and 3.0 lg g_1, respectively) obtained using ic coupled with mic is relatively high [4].
to lower the lods of br and i further, the present study establishes a quantitative method for determining f, cl, br, and i in coal using the ic system after pyrohydrolysis. the pyrohydrolysis conditions, as well the types and concentrations of the absorption solutions are optimized. the method is validated using certified reference coals (for f) or spikes (for cl, br, and i).
水与生活健康
差压表的结构是怎样的
气动四通球阀Q646F的应用特点
中检维康带您了解玉米赤霉烯酮
蠕动泵八大使用技巧
高温水解条件下利用离子色谱同时测定煤炭中的卤素（氟、氯、溴、碘）
德国KRACHT指示器AS8-I-24 AS8-U-230大量现货
D681X气动卫生级蝶阀的特点和执行机构优点
工业反渗透纯水设备日常运行的中的一些要素
动力配电箱型号介绍
神州6*9mm空调管防火等级
点胶的工艺方法有哪些？
组蛋白H3表达调节亲代胚胎的转变，胎牛血清助力科研
收缩机适用多件物品紧包装与托盘包装
沥青动力粘度计实验规程
装盒机的规格型号及其形式结构
第80届API China观众预登记开通啦！今年有什么新内容？
可用于分散和混合两种工艺的气动升降高速分散机
电镀污水除镍大孔阳离子交换树脂的基本应用特点
多种复合气体检测仪在各个行业的具体应用
高温水解条件下利用离子色谱同时测定煤炭中的卤素（氟、氯、溴、碘）
monitoring the halogen levels in coal is important because oftheir effects on human health and the environment. few methodscan be adopted to determine halogens in coal simultaneously. fcan only be determined through ion chromatography (ic) and ionselectiveelectrode (ise), whereas instrumental neutron activationanalysis (inaa) and inductively coupled plasma-mass spectrometry(icp-ms) can only analyze cl, br, and i [1–4]. sample decomposition is a critical step in halogen analysis. halogens are volatile and readily lost when the sample is treated; furthermore, the reagents used for sample digestion may interfere with the determination process itself. to eliminate these drawbacks, pyrohydrolysis and microwave-induced combustion (mic) have been proven effective and reliable digestion methods for determining halogens in coal and oil [2–9]. mic combined with ic, a routine and classic analytical method for determining halogens in water [10], has been successfully used to determine halogens simultaneously in coal [4]. however, about 15% of chinese coal has less than 2.5 lg g_1 br and 75% have less than 3.0 lg g_1 i. therefore, the limits of detections (lods) for br and i (2.5 and 3.0 lg g_1, respectively) obtained using ic coupled with mic is relatively high [4].
to lower the lods of br and i further, the present study establishes a quantitative method for determining f, cl, br, and i in coal using the ic system after pyrohydrolysis. the pyrohydrolysis conditions, as well the types and concentrations of the absorption solutions are optimized. the method is validated using certified reference coals (for f) or spikes (for cl, br, and i).
水与生活健康
差压表的结构是怎样的
气动四通球阀Q646F的应用特点
中检维康带您了解玉米赤霉烯酮
蠕动泵八大使用技巧
高温水解条件下利用离子色谱同时测定煤炭中的卤素（氟、氯、溴、碘）
德国KRACHT指示器AS8-I-24 AS8-U-230大量现货
D681X气动卫生级蝶阀的特点和执行机构优点
工业反渗透纯水设备日常运行的中的一些要素
动力配电箱型号介绍
神州6*9mm空调管防火等级
点胶的工艺方法有哪些？
组蛋白H3表达调节亲代胚胎的转变，胎牛血清助力科研
收缩机适用多件物品紧包装与托盘包装
沥青动力粘度计实验规程
装盒机的规格型号及其形式结构
第80届API China观众预登记开通啦！今年有什么新内容？
可用于分散和混合两种工艺的气动升降高速分散机
电镀污水除镍大孔阳离子交换树脂的基本应用特点
多种复合气体检测仪在各个行业的具体应用